DE69712510D1 - METHOD FOR PRODUCING POLYHYDROXY ACIDS - Google Patents

METHOD FOR PRODUCING POLYHYDROXY ACIDS

Info

Publication number
DE69712510D1
DE69712510D1 DE69712510T DE69712510T DE69712510D1 DE 69712510 D1 DE69712510 D1 DE 69712510D1 DE 69712510 T DE69712510 T DE 69712510T DE 69712510 T DE69712510 T DE 69712510T DE 69712510 D1 DE69712510 D1 DE 69712510D1
Authority
DE
Germany
Prior art keywords
pct
iron
date
sec
polymerization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69712510T
Other languages
German (de)
Other versions
DE69712510T2 (en
Inventor
Anders Soedergard
Mikael Stolt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyflux IP Resources Pte Ltd
Original Assignee
Fortum Oil Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fortum Oil Oy filed Critical Fortum Oil Oy
Publication of DE69712510D1 publication Critical patent/DE69712510D1/en
Application granted granted Critical
Publication of DE69712510T2 publication Critical patent/DE69712510T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

PCT No. PCT/FI97/00675 Sec. 371 Date May 27, 1999 Sec. 102(e) Date May 27, 1999 PCT Filed Nov. 7, 1997 PCT Pub. No. WO98/21263 PCT Pub. Date May 22, 1998The invention relates to a process for the polymerization or copolymerization of cyclic lactones of hydroxy acids by using as catalysts organometallic iron compounds containing iron salts or iron esters of carboxylic acids having at maximum 18 carbon atoms or some iron complexes. The invention relates preferably to the polymerization of lactide by using an iron acetate catalyst or initiator.
DE69712510T 1996-11-11 1997-11-07 METHOD FOR PRODUCING POLYHYDROXY ACIDS Expired - Fee Related DE69712510T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI964525A FI103581B1 (en) 1996-11-11 1996-11-11 A process for preparing polyhydroxy acids
PCT/FI1997/000675 WO1998021263A1 (en) 1996-11-11 1997-11-07 Process for the preparation of polyhydroxy acids

Publications (2)

Publication Number Publication Date
DE69712510D1 true DE69712510D1 (en) 2002-06-13
DE69712510T2 DE69712510T2 (en) 2002-11-07

Family

ID=8547048

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69712510T Expired - Fee Related DE69712510T2 (en) 1996-11-11 1997-11-07 METHOD FOR PRODUCING POLYHYDROXY ACIDS

Country Status (8)

Country Link
US (1) US6096855A (en)
EP (1) EP0937116B1 (en)
JP (1) JP2001503470A (en)
AT (1) ATE217328T1 (en)
AU (1) AU4870397A (en)
DE (1) DE69712510T2 (en)
FI (1) FI103581B1 (en)
WO (1) WO1998021263A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20010060A1 (en) * 2001-01-25 2002-07-25 Novamont Spa TERNARTIE MIXTURES OF BIODEGRADABLE ALIPHATIC POLYESTERS AND PRODUCTS OBTAINED FROM THESE.
US6747121B2 (en) 2001-09-05 2004-06-08 Synthes (Usa) Poly(L-lactide-co-glycolide) copolymers, methods for making and using same, and devices containing same
EP3498312A1 (en) 2003-09-05 2019-06-19 Synthes GmbH Bone cement compositions having fiber-reinforcement and/or increased flowability
TWI374036B (en) 2004-06-10 2012-10-11 Sean Kerr Flexible bone composite
MX2009000525A (en) 2006-07-14 2009-01-27 Kimberly Clark Co Biodegradable aliphatic polyester for use in nonwoven webs.
KR101311060B1 (en) 2006-07-14 2013-09-24 킴벌리-클라크 월드와이드, 인크. Biodegradable aliphatic-aromatic copolyester for use in nonwoven webs
KR101297865B1 (en) 2006-07-14 2013-08-19 킴벌리-클라크 월드와이드, 인크. Biodegradable polylactic acid for use in nonwoven webs
CN101563392B (en) * 2006-12-15 2013-02-13 金伯利-克拉克环球有限公司 Biodegradable polyesters for use in forming fibers
US20100048082A1 (en) * 2006-12-15 2010-02-25 Topolkaraev Vasily A Biodegradable polylactic acids for use in forming fibers
US8518311B2 (en) * 2007-08-22 2013-08-27 Kimberly-Clark Worldwide, Inc. Multicomponent biodegradable filaments and nonwoven webs formed therefrom
US20100323575A1 (en) * 2007-12-13 2010-12-23 Aimin He Biodegradable fibers formed from a thermoplastic composition containing polylactic acid and a polyether copolymer
BRPI0822434B1 (en) * 2008-05-30 2018-05-29 Kimberly-Clark Worldwide, Inc. Nonwoven weft, absorbent article and method for forming nonwoven weft
US8461262B2 (en) 2010-12-07 2013-06-11 Kimberly-Clark Worldwide, Inc. Polylactic acid fibers
CN105131268B (en) * 2015-08-11 2017-02-01 苏州大学张家港工业技术研究院 Application of iron powder/halide in catalysis of epsilon-caprolactone ring-opening polymerization reaction

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS432948Y1 (en) * 1965-08-26 1968-02-07
US5378801A (en) * 1988-11-01 1995-01-03 Reichert; Dieter Continuous process for the preparation of resorable polyesters and the use thereof
US5136017A (en) * 1991-02-22 1992-08-04 Polysar Financial Services S.A. Continuous lactide polymerization
JP3065384B2 (en) * 1991-06-05 2000-07-17 旭硝子株式会社 Method for producing lactide polymer
IT1256918B (en) * 1992-08-04 1995-12-27 Mini Ricerca Scient Tecnolog PROCESS FOR THE PRODUCTION OF LACTIC ACID POLES.
WO1994007941A1 (en) * 1992-10-02 1994-04-14 Cargill, Incorporated Melt-stable lactide polymer films and processes for manufacture thereof
FI99125C (en) * 1993-12-31 1997-10-10 Neste Oy Polylaktidsammansättning
DE69509927T2 (en) * 1994-01-21 2000-01-27 Shimadzu Corp., Kyoto Method of producing polylactic acid

Also Published As

Publication number Publication date
FI103581B (en) 1999-07-30
WO1998021263A1 (en) 1998-05-22
EP0937116A1 (en) 1999-08-25
FI103581B1 (en) 1999-07-30
DE69712510T2 (en) 2002-11-07
US6096855A (en) 2000-08-01
JP2001503470A (en) 2001-03-13
FI964525A (en) 1998-05-12
ATE217328T1 (en) 2002-05-15
FI964525A0 (en) 1996-11-11
EP0937116B1 (en) 2002-05-08
AU4870397A (en) 1998-06-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HYFLUX IP RESOURCES PTE. LTD., SINGAPORE, SG

8339 Ceased/non-payment of the annual fee